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® • Installation • Startup • Maintenance • Parts Boiler Manual Series 2 Gas-Fired Water Boilers This manual must only be used by a qualified heating installer/service technician. BEFORE installing, read all instructions in this manual and all other information shipped with the boiler. Perform steps in the order given. Failure to comply could result in severe personal injury, death or substantial property damage. Part number 550-142-783/1012
